World History is a vast subject; between the years 600 B.C.E. and 600 C.E., the world bared witness to the formations of massive empires and societies that spread across the globe. Many different civilizations formed, each having their own trials and tribulations, and all of them making contributions to mankind, making their own unique mark on history. You can find a lot of this information in an AP World History study guide.
One such civilization was Rome. The Romans introduced the world to the idea of organized governments, the likes of which still exist in present day America, specifically consuls and the idea of a Senate. Or maybe you have heard the term "All roads lead to Rome." That is because the Romans engineered 50,000 miles of paved road throughout their expansive empire, in order to allow the easy movement of troops, a great accomplishment of the time.
Between the years 600 CE to 1450, another slew of exciting events transpired in history, including, the Christian Crusades, and the voyage of Christopher Columbus. Although the knights that ventured into the Middle East in an effort to defend Constantinople in the name of Christianity, it was eventually taken by the Muslims and renamed Istanbul. Despite their failure, it did plant Europeans dead center in a major trade circuit. In 1492, Christopher Columbus would make a false discovery of "The New World" after attempting to find a direct route to Asia. This so-called discovery worked out pretty well for Europe, but not so good for the Native Americans. This would be the beginning of the exploration and the colonization of the North American continent.
Starting in the 1600s, Britain began exploring North America, first lead by the pilgrims who sought religious freedom, later attracting additional waves of Puritan immigrants. By 1640, Massachusetts received a total of 20,000 expats from England. However, the more power and control the British gained over her colonies in the West, the more abusive practices that were doled out over the occupants, causing wide spread discontent.
With plenty of people and resources to fend for themselves, the colonies began to grow sick of paying homage to a greedy homeland. The colonies were on the brink of the American Revolution. In 1774, a political group who called themselves the Sons of Liberty boarded three ships in the Boston Harbor and plunged a huge amount of Darjeeling tea into the water. This was to protest the tea tax set on tea by the British Government that procured the tea by means of the British East India Company. On July 4th, 1776, the founding fathers and the Continental Congress signed the Declaration of Independence and went to war with England. After a more than six years of fighting, the British surrendered, and American independence was won.